PI. end . cr. 
I. FILICES. 9. Blechnum. 1 $ 
Phyllitis, Raii Syn. 116, 1 ; Ger. em.1138. 
Phyllitis, seu Lingua cervina vulgaris. Park. 1046. 
Asplenium Scolopendrium, Lin. 8. P. 1537. 
Asplcuium elongatum, Salisb. Prod. 409. 
Scolopendrium Phyllitis, Roth Gerni. 3,47. 
Scolopendrium vulgare, Symons Syn. 
Blechnum HngUifolium, Stokes Rot. M.M. 4,616. 
Moist rocks, walls, wells, and banks ; perennial ; July. 
Boot fibrous, brown; frond 12 to 18 in, high, upright, 
light green on both sides, smooth ; stipes brown, often ra- 
ther scaly; sori numerous, yellowish brown, distinct; invo- 
lucra turn back and are hidden by the prominent capsules. 
|3. cri spurn. Frond crisp, jagged at the edge. 
Phyllitis crispa, J. Bauh. H. P. 3,749. 
y. multifidum. Frond wavy, tip manycut, crisp. 
Phyllitis multifida, Ger. em. 1138; Raii Syn. 117, 1. 
S'. polyscfiides. Frond cleft at the edges. 
Phyllitis polyschides laciniis singulis cruciatum decussatis Bobartlij 
Raii Syn. 117, 2. 
£. ramosum . Stipes branched ; frond divided. 
F. Blechnide.^. Sori linear, contiguous, parallel, on 
each side of the midrib ; involucra opens towards the rib. 
IX. 9. BLECHNUM. Dioscorides. Spicant 
Sori linear, longitudinal, contiguous, parallel to the mid- 
rib ; involucra superficial, submarginal, opening on the 
inside. 
Blechnum boreale. Northern spicant . 
Frond simple, pinnatifid ; lobes lanceolate, rather obtuse, 
parallel; fruitbearing fronds distinct, and narrower than the 
barren ones ; leaflets linear pointed. 
Lonchitis aspera, Raii Syn. 1 IS; Ger. em. 1140. 
Lonchitis aspera minor, Park. 1042. 
Osmunda Spicant, Lin. S. P. 1522. 
Struthiopteris Spicant, Scop. Cam. 1258. 
Onoclea Spicant, Flojfm. Germ. 2, 11. . 
Acrostichum Spicant, Sibthorp. 267. 
Osmunda borealis, Salisb. Prod. 402. 
Blechnum Spicant, Roth Germ. 3, 44. 
Blechnum boreale, Swartz. Schr J. 275. 
Rough spleenwort. 
Moist woods and heaths ; perennial; July. 
Root fibrous, scaly ; fronds a foot or IS in. high, dark 
green, smooth, pectinato-pmnate; leaflets very numerous, 
subalternate, mucronate; capsules brown. 
